High levels of azinphos-methyl (0.4–0.8 μg/L) were detected in the Wilmot River, Prince Edward Island, Canada, following runoff from an agricultural field after a heavy rainfall on 19 July 2002. Benthic macroinvertebrate abundance and diversity were sharply lower in samples collected 1 d after th...

Provides an overview of insects and their close relatives. Coverage includes insect classification, behavior, ecology, genetics and evolution, physiology, and management, and references to relevant literature. All the major arthropod groups are addressed, along with many important families and speci...

The fishing (dock or wharf) spiders (Dolomedes spp. Latreille, 1804) of the Maritime Provinces of Canada were surveyed through a combination of new collecting and examination of specimens from the Nova Scotia Museum and the New Brunswick Museum. Four species (Dolomedes tenebrosus Hentz, 1844, Dolom...

Recent concerns about the spread of the mosquito-borne West Nile Virus (WNV) through North America have prompted a number of regional studies of mosquito species composition and distribution. In this study, we report on intensive surveys of mosquitoes on Prince Edward Island (PEI). Larvae ...

The relationship between S. purpurea and its inquilines in northeastern North America is reviewed. Wyeomyia smithii, Metriocnemus knabi and Blaesoxipha fletcheri dominate the insect community of S. purpurea. All 3 are detritivores and feed on the arthropod prey attracted to the pitcher plant. They c...

In the mid 1970s, Manitoba Hydro impounded Southern Indian Lake (SIL) and diverted much of the flow of the Churchill River, which flowed through SIL, into the Nelson River Catchment for hydroelectric power generation. A dramatic decline in burrowing mayfly (Hexagenia ) populations following lake man...